In this symposium, we will discuss who decides what to breed for on a national scale (e.g., public, industry, or political pressures), what we are breeding for (e.g., weighting, traits, economics), and why we are composing our breeding strategies the way we are. This symposium will highlight the development of breeding strategies in all dairy breeds and its impact, and especially look to new developments and future scenarios.
Today’s consumers are very different than they used to be yet they have a strong interest in where their food comes from, including how food animals are raised and handled. Social media influencers may or may not rely on science but do use feelings and emotions to share their stories and opinions. Social media influencers are lacking in production agriculture, and those that do exist use science (facts) and typically don’t use feelings and emotions. To help build consumer trust in dairy products, this symposium will provide information about the role of social media influencers, how they drive consumer trends, and the opportunities for the dairy community.
Food loss and waste is a significant global problem, with nearly one-third of the world’s food supply, approximately 1.3 billion tons, lost or wasted every year. Dairy foods have one of the highest rates of food loss and waste, with 20% lost or wasted globally and just over 30% lost or wasted in the United States. The impacts of these losses are widespread, with economic, environmental, and nutritional consequences. The dairy industry must take steps to combat food loss and waste throughout the production-to-consumer continuum. In this symposium, we explore the effects of dairy food loss and waste on our industry and consumers and discuss strategies to reduce this loss and waste throughout the dairy continuum.
Despite scientific advances that drive an increasing ability to understand animal experiences across species, there is a divide between our ability to implement and support management changes that improve dairy cattle welfare on-farm and our consideration and understanding of societal viewpoints. In this symposium, we propose to bring together different viewpoints on (1) basic research to measure animal emotions, (2) applied approaches to improve welfare within typical dairy production settings, and (3) societal viewpoints on dairy animal welfare. We aim to draw, in part, on expertise outside dairy cattle to provide novel viewpoints, and include speakers who can provide a global perspective. The symposium will include a panel discussion to stimulate debate and reflection on the future of animal agriculture, in consideration of these various viewpoints on animal welfare.
Over the past decade, the dairy research community has been expanding our knowledge on mechanisms that control the regulation of milk fat and protein synthesis. Recent research has demonstrated that milk protein yield does not respond according to the limiting substrate phenomenon and that extra-mammary organs may play a role in arterial amino acid concentrations and mammary blood flow. Furthermore, research has begun to uncover the mammary metabolic response to dietary fat supplementation, including the balance between de novo fatty acid synthesis and the uptake of preformed fatty acids. These findings, along with an abundance of research regarding the role of nutrition, molecular regulation, and cellular signaling pathways on the regulation of these components, have significant implications for influencing milk fat and protein synthesis and concentrations. As dairy producers are paid according to the composition of raw milk components, most notably milk fat and protein, research demonstrating potential avenues to optimize the regulation of these components is of increasing importance to the North American dairy industry. Therefore, the aim of the symposium is to highlight new developments in the regulation of milk fat and protein synthesis in the lactating dairy cow and to focus on the main factors that regulate the synthesis of major milk components.
Forage quality makes up the majority of the diet in most dairy animals. In fact, a trend over the past 20 years of using more highly digestible forage hybrids has resulted in greater adoption of higher forage diets without sacrificing productivity. Often, it is a challenge to make the leap from seeing responses in a research setting and observing similar observations in field settings, where the environment is not controlled. The objective of this symposium is present the responses of forage quality in a controlled setting, determine predictability of how controlled research corresponds with field responses, and how to connect the two areas.
Dairy foods have long been vehicles for delivery of probiotics to consumers. This symposium will highlight some of the new issues related to probiotics. First, there is significant interest in probiotics other than lactic acid bacteria or bifidobacteria. Second, momentum is building to reorganize the Lactobacillus genus, which will result in many new genus names for currently popular probiotics. Third, some high-profile studies have cast doubt on probiotics and these are worthy of discussion. Finally, it would be interesting to hear from the Gates Foundation regarding their desire to use probiotics in the developing world.
Although not every dairy scientist is expected to be an expert on every dairy-related topic or issue, every dairy scientist is a communicator. This special session will provide an overview of “hot topics” facing the dairy industry to arm ADSA attendees with current information they need to put the hype into context.
Actions, or lack thereof, in Washington, DC, and in state capitols have a major impact on the future of agricultural research and education. Animal agriculture’s voice is too often missing when decisions are made. It is critical that researchers, educators, and the users of agricultural research speak out to help define research priorities as they advocate for needed legislation and research funding. This special session will help people better understand the current status of research funding and priority setting. It will highlight what organizations and individuals can do and are doing to support action in these areas. Topics will include a review of agriculture research provisions of the 2018 Farm Bill; agriculture research funding in the FY20 budget; status and impact of the USDA relocation on research; and opportunities for input by animal scientists.
In this symposium, we will highlight and stress the properties of milk that can be altered using genetic and genomic approaches (e.g., A2 milk, fatty acid profiles, use of mid-infrared technology) and discuss payment schemes and retailer/consumer perspectives on such alterations. This symposium will focus on the development of this implementation in all dairy breeds, its impact, and especially look to new developments and future scenarios.
Milk intake from the school breakfast program and the national school lunch program accounts for >75% of daily milk intake among children from 5 to 18 years old. This highlights the importance of these programs in driving fluid milk consumption in children. Fluid milk is one of the major contributors to dietary calcium and vitamin D in the diets of children, and its consumption is an important factor that influences their overall nourishment. Increasing fluid milk consumption among children is important because milk consumption is a behavioral trait that continues into adulthood and could stop the steady decline in fluid milk consumption among adolescents. The National Dairy Council is sponsoring this symposium reviewing the latest research and insights to drive milk consumption among children.
The mammary gland is a modified skin gland and therefore plays a role in the innate immune system; moreover, the adaptive immune response is important during involution and mastitis. Understanding the role of each of these arms of the immune system and their interaction will enable development of management strategies that enhance welfare and production of the dairy cow.
A link exists between active, intrinsically motivated learning and subject-specific curiosity. This link may be used in the classroom to support academic performance. Increasing student interest may directly increase students’ motivation to continue studying animal science. The structure of the course environment and activities affect student interest. This combined symposium and workshop will provide attendees with tools and classroom interventions designed to increase student interest. Topics that will be included during the symposium portion include the pedagogy of motivation and examples of ways to create interest. Examples include utilizing technology in large classrooms, the relationship between grades and motivation, and embedding motivational strategies into a departmental animal science curriculum. This symposium/workshop includes lunch and is a ticketed event.
According to Innova Market Insights, “consumers have a rising interest in the role that nutrition can play in supporting their emotional and mental wellbeing.” This has led to an increased focus on new products with reduced sugar and increased fiber, as well as incorporation of functional ingredients. Lactose is the second major component in milk after water. It is also one of the major components of various coproduct streams such as whey, acid whey, and permeates that are produced during manufacture of dairy products and ingredients. Lactose is a unique disaccharide and, with emerging bioconversion technologies, it is well positioned to fulfill this growing demand. This symposium reviews current innovations in the field of valorizing lactose into various value-added products such as rare sugars, fibers, and other functional ingredients.
Adipose tissue (AT) functions as the major body of energy reserve in dairy cows. During the transition period of dairy cows, negative energy balance induces lipolysis and fatty acids are released from triglyceride stores within adipocytes. However, AT is more than an energy warehouse. As a major endocrine organ, AT modulates energy utilization by peripheral organs by secretion of adipokines and bioactive lipids. Some examples of AT endocrine functions include self-regulation of lipolysis and the synthesis of fatty acids and triglycerides to buffer systemic energy availability; regulation of feed intake through secretion of leptin and other adipokines; and modulation of insulin sensitivity through the synthesis of adiponectin. The rapid reduction in size of AT depots during the transition period induces an inflammatory response within AT that may, depending on the intensity, predispose periparturient dairy cows to inflammatory and metabolic diseases. Finally, AT-derived bioactive lipids and adipokines can also influence reproductive performance.
During this symposium, the speakers will discuss whether expression of estrus is relevant to herd reproductive performance under different management strategies.
Dairy research has focused on increasing the nutritional value of animal products since the beginning of the century. In particular, fatty acid composition has been deeply studied with the aim to enrich milk fat with unsaturated fatty acids and reduce saturated fatty acids to improve human health. In this respect, nutrition is the most powerful environmental effect able to modify milk fat synthesis and fatty acid composition. Recent studies have identified bioactive compounds in milk and ruminant products characterized by peculiar activities associated with human health. Consumer awareness of food-producing animal welfare and sustainability of production systems has increased in recent years and both dairy industry and legislation are paying increasing attention to husbandry practices. From this perspective, the association between animal welfare and management and the quality of the product is often coupled but is not always easy to demonstrate. The possibility to highlight improvements in the nutritional properties of animal products by changing animal management strategies is very promising in this context. The aim of this platform session will be to provide an update on feeding strategies that can improve milk fat composition in small ruminants
Exciting, novel approaches to use behavior to assess dairy cattle affective states are emerging. This session will consolidate abstracts submitted under this theme in a platform session, with an opening invited talk delivered by a researcher with particularly novel and exciting methods to present.
Neonatal diarrhea in calves is a result of electrolyte and acid–base imbalance; this condition represents a significant economic loss to the dairy industry and continues to be the most common disease in preweaned dairy calves in the United States, accounting for 56.4% of deaths. In the past 2 years, new research on metabolic ion changes during preweaning have been published but this topic has not been widely discussed, especially in the United States.
The invited speakers in this session will discuss recently discovered ways to monitor and predict fertility potential in dairy cattle.